/*
 * Copyright (c) 2021 Talkweb Co., Ltd.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include <stdio.h>
#include <string.h>
#include <unistd.h>

#include "ohos_init.h"
#include "cmsis_os2.h"

osSemaphoreId_t semaphore;

void Thread1Semaphore(void)
{
	while(1)
	{
		osSemaphoreRelease(semaphore);
		printf("Thread1Semaphore Release  Semaphore \n");
		osDelay(200U);
	}
}

void Thread2Semaphore(void)
{
	while(1)
	{
		osSemaphoreAcquire(semaphore, osWaitForever);
		printf("Thread2Semaphore get Semaphore \n");
		osDelay(100U);
	}
}

void SemaphoreExample(void)
{
    osThreadAttr_t attr;

    attr.attr_bits = 0U;
    attr.cb_mem = NULL;
    attr.cb_size = 0U;
    attr.stack_mem = NULL;
    attr.stack_size = 1024 * 4;
    attr.priority = 10;

    attr.name = "Thread1Semaphore";
    if (osThreadNew((osThreadFunc_t)Thread1Semaphore, NULL, &attr) == NULL)
    {
        printf("create Thread1Semaphore failed!\n");
    }

    attr.name = "Thread2Semaphore";
    if (osThreadNew((osThreadFunc_t)Thread2Semaphore, NULL, &attr) == NULL)
    {
        printf("create Thread2Semaphore failed!\n");
    }
	
    semaphore = osSemaphoreNew(3, 0, NULL);
    if (semaphore == NULL)
    {
        printf("Sem1 create failed!\n");
    }
}

APP_FEATURE_INIT(SemaphoreExample);